Vulnerability-Lookup

FKIE_CVE-2023-52731

Vulnerability from fkie_nvd - Published: 2024-05-21 16:15 - Updated: 2026-08-04 10:18

Severity

7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: fbdev: Fix invalid page access after closing deferred I/O devices When a fbdev with deferred I/O is once opened and closed, the dirty pages still remain queued in the pageref list, and eventually later those may be processed in the delayed work. This may lead to a corruption of pages, hitting an Oops. This patch makes sure to cancel the delayed work and clean up the pageref list at closing the device for addressing the bug. A part of the cleanup code is factored out as a new helper function that is called from the common fb_release().

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/3efc61d95259956db25347e2a9562c3e54546e20	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/87b9802ca824fcee7915e717e9a60471af62e8e9	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f1d91f0e9d5a240a809698d7d9c5a538e7dcc149	Patch
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/3efc61d95259956db25347e2a9562c3e54546e20	Patch
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/87b9802ca824fcee7915e717e9a60471af62e8e9	Patch
af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/f1d91f0e9d5a240a809698d7d9c5a538e7dcc149	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	6.2
linux	linux_kernel	6.2
linux	linux_kernel	6.2
linux	linux_kernel	6.2
linux	linux_kernel	6.2
linux	linux_kernel	6.2
linux	linux_kernel	6.2
linux	linux_kernel	6.2

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/video/fbdev/core/fb_defio.c",
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            "drivers/video/fbdev/core/fbmem.c",
            "include/linux/fb.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "status": "affected",
              "version": "5.19"
            },
            {
              "lessThan": "5.19",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.13",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfbdev: Fix invalid page access after closing deferred I/O devices\n\nWhen a fbdev with deferred I/O is once opened and closed, the dirty\npages still remain queued in the pageref list, and eventually later\nthose may be processed in the delayed work.  This may lead to a\ncorruption of pages, hitting an Oops.\n\nThis patch makes sure to cancel the delayed work and clean up the\npageref list at closing the device for addressing the bug.  A part of\nthe cleanup code is factored out as a new helper function that is\ncalled from the common fb_release()."
    },
    {
      "lang": "es",
      "value": " En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: fbdev: corrige el acceso a p\u00e1ginas no v\u00e1lidas despu\u00e9s de cerrar dispositivos de E/S diferidas. Cuando un fbdev con E/S diferidas se abre y cierra una vez, las p\u00e1ginas sucias a\u00fan permanecen en cola en la lista pageref. y, eventualmente, m\u00e1s adelante, podr\u00e1n procesarse en el trabajo retrasado. Esto puede provocar la corrupci\u00f3n de las p\u00e1ginas y provocar un error. Este parche garantiza cancelar el trabajo retrasado y limpiar la lista de referencias de p\u00e1gina al cerrar el dispositivo para solucionar el error. Una parte del c\u00f3digo de limpieza se factoriza como una nueva funci\u00f3n auxiliar que se llama desde el fb_release() com\u00fan."
    }
  ],
  "id": "CVE-2023-52731",
  "lastModified": "2026-08-04T10:18:38.800",
  "metrics": {
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          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
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          "role": "CISA Coordinator",
          "timestamp": "2024-09-10T15:37:38.155499Z",
          "version": "2.0.3"
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}

CVE-2023-52731 (GCVE-0-2023-52731)

Vulnerability from cvelistv5 – Published: 2024-05-21 15:22 – Updated: 2026-08-05 09:11

Title

fbdev: Fix invalid page access after closing deferred I/O devices

Summary

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-09-10 15:37 UTC

Assigner

Linux mitre root

References

3 references

URL	Tags
https://git.kernel.org/stable/c/87b9802ca824fcee7…
https://git.kernel.org/stable/c/f1d91f0e9d5a240a8…
https://git.kernel.org/stable/c/3efc61d95259956db…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 186b89659c4c67cccead52961eab0ca3b23951dc , < 87b9802ca824fcee7915e717e9a60471af62e8e9 (git) Affected: 56c134f7f1b58be08bdb0ca8372474a4a5165f31 , < f1d91f0e9d5a240a809698d7d9c5a538e7dcc149 (git) Affected: 56c134f7f1b58be08bdb0ca8372474a4a5165f31 , < 3efc61d95259956db25347e2a9562c3e54546e20 (git)
Linux	Linux	Affected: 5.19 Unaffected: 0 , < 5.19 (semver) Unaffected: 6.1.13 , ≤ 6.1.* (semver) Unaffected: 6.2 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T23:11:35.499Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        ],
        "title": "CVE Program Container"
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      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-52731",
                "options": [
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

FKIE_CVE-2023-52731

CVE-2023-52731 (GCVE-0-2023-52731)

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Sightings

Nomenclature